from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Chiefly British Lacking intelligence and vitality; dull.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Lacking intelligence, sense or discernment, often implying lack of capacity of will to remedy the condition.
- adj. Inexperienced, naïve, innocent to the point of foolishness.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. (British informal) lacking intelligence and vitality
From dialectal gawm, sense, from Middle English gome, notice, from Old Norse gaumr.(American Heritage® Dictionary of the English Language, Fourth Edition)
From English dialectal gaum (“understanding”) + -less (“without”), ultimately from Proto-Germanic *gaumaz, *gaumō (“understand”). The ‘r’ found in this spelling is a vowel-lengthening device common in non-rhotic dialects of English. (Wiktionary)